About the condition that the air-fuel ratio feedback correction stops, during engine starting.Group of answer choicesTrueFalse
Question
About the condition that the air-fuel ratio feedback correction stops, during engine starting.
- Group of answer choices
- True
- False
Solution
Understanding the Concept
The air-fuel ratio feedback correction refers to the process by which an engine management system adjusts the air-fuel mixture based on feedback from sensors such as the oxygen sensor. This adjustment is crucial for optimal engine performance, fuel economy, and emission control.
Analyzing Engine Starting Conditions
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Cold Engine Start: During engine starting, especially in cold conditions, the engine management system often runs in a default mode. This is to ensure that the engine starts reliably before it gathers sufficient data from the sensors.
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Feedback Correction Behavior: Typically, feedback correction may be limited or stopped during engine start to prevent stalling or rough running when the engine is not yet in its optimal operating temperature.
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System Design: Most modern engines will not actively utilize feedback correction immediately upon starting. Instead, they may rely on pre-programmed fuel maps until the engine reaches a certain temperature or operating condition.
Conclusion
Given the nature of the air-fuel ratio feedback correction during engine starting, the statement that the "air-fuel ratio feedback correction stops during engine starting" is most likely True.
Final Answer
True
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